Floor-surfacing machine



J. W. TlLLEY FLOOR SURFACING MACHINE R Jan. 22, 1929.

ATTOR N EY Jan. 22, 1929. 1,699,638

J. W. TILLEY FLOOR SURFACING MACHINE Filed July 27. 1927 4 Sheets-Sheet 2 INVENTOR ATTO R N EY Jan. 22, 1929. 1,699,638 J. W. TILLEY FLOOR SURFACING MACHINE Filed July 27, 1927 4 sheets-smet 3 I INVENTOR ATTO R N EY Jan. 22, 1929.

J. W. TILLEY FLOOR SURFACING MACHINE 'Filed July 27,- 1927 #Sheets-Sheet 4 INVENTOR ATTOR N EY Patented Jan. 22, 1929.

UNITEDy STATES JOI-IN'-W'. TILLEY, 0F WHITES'CREEK, WEST VIRGINIA, ASSIGNOR OF ONE-HALF TO y THOMASJ. FLETCHER, OF WHITES CREEK, WEST VIRGINIA.

FLOOR-SURFACING MACHINE.

Applicationfled July 97,k

This invention relates to a floor surfacing machine, the general objectof the invention being to provide a wheeled frame having a verticallymovable supporting frame thereon which carries a plurality of reciprocatory shoes which carry the sandpaper or otherv abrasive material, with power means on the first frame for reciprocating the shoes.

A furtherobject of the invention is to providehand operated means for raising and lowering the-shoe carrying framel and also to provide a suction device driven by the power means for removing thesand and other material from the floor in rear of the shoes.

This invention also consists in certain otherv features of construction and in the combination and arrangement ofthe several parts, to be hereinafter fully described,.illustrated in the accompanying drawings and vspecifically pointed out in the appended claims.

In describing my invention in detail, reference will be had to the accompanying drawingswherein like characters denote like or corresponding yparts throughout the several views, and in which Figure 1 is a top plan view of the machine. Figure-2 is a side view thereof.

Figure 3 is a longitudinal sectional view. Figure 4 is a section on line 4 4 of Figure 3.

Figure 5 is a section on line 5 5 of Figure 1.

Figure 6 is a section on line 6 6 of Figure 3.

Figure 7 is a section on line 7 7 of Figure 1.

Figure 8 is a section on line 8 8 of Figure 2.

Figure 9 is a section on line 9 9 of Figure 2.

In these views 1 indicates a casing-like body which is supported by the side wheels 2 and the caster wheel 3 and which is adapted to be pushed along a floor byl the hand-le 4 which is attached to the rear of the body above the caster wheel. A frame 5 is supported for vertical movement at the front of the body by having the ribs 6 on the rear side of the frame engaging the guideways 7 in the front of the body, the frame being movable by means of the lever 8 pivoted to the upright 9 attached to the front of the body, the lever being connected at its front end to a cross rod 10 which is connected with the sides of the frame by the members 11. Thus by press- 1927. Serial No. 298,819.

ing down upon the rear end of the lever which is arranged adjacent the handle 4, the frame can be raised. I provide a screw shaft 12 for holding the lever in adjusted position, this `shaft passing through a threaded opening in a bracket 13 attached to the rear part of the body and said shaft has a spherical ond 14 engaging a socket in a member 15 which is pivoted in an opening 16 formed in the rear end of the lever 8.

The frame 5 is provided with a number of groups of horizontal guide bars 17, there being four guide-bars to a group, these guide bars being parallel to each other and tothe sides of theframe and having their ends suitably connected with the front and rear sides of theframe. Across head 18 is slidably arranged for horizontal movement in each group of guide bars and the stem 19 of a shoe 20 passes through each cross head so thati the shoe is caused to move with the cross ica As shown in the figures, I prefer to use four shoes, with the outer. shoes of greater width than the inner shoes. Each shoe is provided with a sheet 21 of sandpaper or the like. Each sheetis removably held on the shoe byl the pair of eccentric rollers 22, one arranged adjacent each end of the shoe, the trunnions of the rollers being journaled in the upstanding ears 23 fastened to the sides of the shoe.

A crank shaft 24 is journaled in the body adjacent the front thereof and connecting rods 25 connect the cranks of the shaft with the upper ends of the stems of the shoes so that the rotary moment of the crank shaft will impart a reciprocatory motion to the shoes, and I prefer to so arrange the cranks that two of the shoes will be moving rearwardly while the other two will be moving forwardly. I also prefer to connect each stem withy its connecting rod by means of a pin 26 which passes through the rod andthe stem and has a collar 27 at its center which spaces the rod from the stem.

A motor 28 is fastened to the top of the body and its shaft carries a sprocket 29 over which passes an endless chain 80 which also passes over a sprocket 31 on one end of the crank shaft 24. Afan casing 32 is arranged in the body and the fan 33 therein is driven from the motor through means of the belt 34 and the pulleys 35, one pulley being arranged on the fan shaft and the other on theA motor shaft. The intake 36 ot' the tan casing is provided with a Wide mouth which terminates adjacent the rear ends ot' the shoes when the shoes are in their rearward position so that the sand trom the shoes and the dirt from the floor will be drawn into the fan casing through this inlet and thus the floor will be kept clean. The exhaust pipe 37 ot the fan casing passes through the top ot the body Where it is provided with an elboW^38 t0 which is tastened a bag 39 by the clamping ring 40 so that this bag catches the dirt picked up by the suction means.

From the foregoing it will be seen that as the machine is pushed along a 'floor with the motor in operation, the shoes Will be reciprocated so that the sandpaper on the shoes will act on the floor and thus surface the same. The sand and material removed from the loor will be picked up by the suction means and deposited in the bag 39. lVith this machine, a floor can be easily and quickly surfaced with but little effort on the part ot the operator. a

It is thought from the foregoing description that the'advanta ges au d novel features of my invention will be readily apparent.

I desire it to be understood that l may make changes in the construction and in the combination and arrangement ot' the several parts, provided that such changes fall Within the scope of the appended claims.

`What I claim is l. A machine of the class described comprising Wheeled body, having vertically arranged guideways at its front, a trame in front ot the body and having vertical guides at its rear engaging the guideways at the front of the body, reciprocatory shoes carried by the traine, a. crank sha-ft carriedby the body, rods connecting the cranks of the shaft With the shoes, a motor carried by the body and connected with the lshaft for rotating the same, a lever pivotally connected with the lbody and connected with the frame for rais- .ing and lowering the iframe and means for holding the lever 1n adjusted position.

Q. A machine ot the class described comprising a. Wheeled body, a trame connected with the front of the body, horizontal guiding means in the trame, a plurality of shoes, a stem connected with each shoe, a cross head attached to each stem, said cross heads being supported for horizontal movementin4 the guiding means, a crankshaft journaled in the body, rods connecting the cranks thereotl with the stems, a motorcarried by the body and connected with the crank shaft for rotating picking up the dust and dirt lett by the shoes the outlet part ot the suction mea-ns extending through the top of the body and a sack connected With the extremity of said out-let part and arranged exteriorly of the body.`

In testimony whereof I athx my signature.

JOHN WfriLLEY. 

